Does Claude Code follow the Explore → Code → Verify arc? Analyze how sessions evolve across 3 phases.
npx cc-arc
Zero dependencies. Reads ~/.claude/projects/ directly.
cc-arc — Session Arc Analyzer
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Sessions analyzed: 1,595 (≥9 tool calls)
Mode-locked sessions (same dominant all 3 thirds): 551 (34.5%)
Tool Distribution Across Session Arc (first → middle → last)
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Glob ████░░░░░░░░░░░░░░░░ 3.4% → 2.0% → 1.0% -2.4%↓
Edit ██████████░░░░░░░░░░ 11.5% → 12.7% → 13.5% +2.0%↑
Grep ████████░░░░░░░░░░░░ 8.2% → 8.8% → 9.2% +0.9%↑
Bash ██████████████████░░ 37.7% → 37.1% → 37.8% +0.1%→
Read █████████░░░░░░░░░░░ 24.6% → 25.9% → 24.8% +0.2%→
WebSearch █░░░░░░░░░░░░░░░░░░░ 1.8% → 1.7% → 1.5% -0.4%↓
Write ████░░░░░░░░░░░░░░░░ 4.3% → 3.4% → 4.2% -0.1%→
WebFetch █░░░░░░░░░░░░░░░░░░░ 1.0% → 1.0% → 0.9% -0.1%→
Top Session Arc Patterns
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Verify→Verify→Verify 257 16.1% [locked]
Read→Read→Read 196 12.3% [locked]
Explore→Read→Read 129 8.1%
Web→Web→Web 117 7.3% [locked]
Read→Read→Verify 72 4.5%
Read→Verify→Verify 71 4.5%
The Explore → Code → Verify arc is a myth.
- Bash (Verify) is flat at 37% across all 3 thirds — Claude Code verifies constantly, not just at the end
- 34.5% of sessions are mode-locked — sessions stay in the same mode throughout
- Glob is the one front-loaded tool (3.4% → 1.0%, -2.4%) — file discovery happens first, then stops
- Edit is the one back-loaded tool (+2.0%) — coding concentration grows toward the end
- Most common complex arc: Explore→Read→Read (8.1%) — explore to orient, then read deeply
| Finding | What it means |
|---|---|
| Verify flat throughout | Bash isn't a "final phase" — it's constant background verification |
| Mode-locked 35% | Sessions are often single-purpose from start to finish |
| Glob front-loaded | File discovery is a distinct opening move |
| Edit back-loaded | Writing code builds momentum over time |
npx cc-arc --json # Raw JSON output
yurukusa.github.io/cc-arc — drag and drop your projects folder.
Part of cc-toolkit — tools for understanding your Claude Code sessions.
Claude Code Ops Kit ($19) — 16 production hooks + 5 templates + 3 tools. Built from 160+ hours of autonomous operation.
Source: yurukusa/cc-arc